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JTAC recommended versions of Junos software are listed to assist with determining which version of software to download and install.

This article applies to the following devices:

• EX Series
• J Series
• M, T and MX Series
• QFX Series
• SRX Series
• SA and UAC MAG Series Chassis Management Module MAG-CM060

For other Junos devices, refer to the Release Notes and the Alerts column on the Download Software pages.

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For customers planning an upgrade or initial installation, JTAC recommends that customers consider the following Junos Software versions. These versions are selected using input from Juniper Engineering, customers, and analysis of field usage data.

Exceptions to this include:

• JTAC has specifically recommended that customers use a version of Junos Software that is different from what is listed.
• You require specific features that are only available in another version of Junos Software.  In this case, please be sure to download the latest maintenance release.
• Your currently installed version of Junos is working well.
• If you use NSM, refer to the NSM & Junos Compatibility Matrix to make sure the recommended Junos software version can be managed by NSM.

 

EX Series Ethernet Switches

Platform	JTAC Recommended Junos Software by Platform	Release Type	Last updated
EX2200	Junos 11.4R5.7	Standard	28 January 2013
EX2200-C	Junos 11.4R5.7	Standard	28 January 2013
EX3200	Junos 11.4R5.7	Standard	28 January 2013
EX3300	Junos 11.4R5.7	Standard	28 January 2013
EX4200	Junos 11.4R5.7	Standard	28 January 2013
EX4200-PX (POE+)	Junos 11.4R5.7	Standard	28 January 2013
EX4500	Junos 11.4R5.7	Standard	28 January 2013
EX4550	Junos 12.2R2.5	Standard	28 January 2013
EX4500-VC	Junos 11.4R5.7	Standard	28 January 2013
EX4500/EX4200 Mixed Mode VC	Junos 11.4R5.7	Standard	28 January 2013
EX6200	Junos 11.4R5.7	Standard	28 January 2013
EX8200	Junos 11.4R5.7	Standard	28 January 2013
EX8200-VC (XRE200)	Junos 11.4R5.7	Standard	28 January 2013

NOTE: Please go to the following link to see “First Junos OS Release for Each EX Series Switch” page:
http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/concept/ex-series-software-features-overview.html#first-junos-release-for-ex-platforms-table

Please follow this link to go to the software download page: https://www.juniper.net/support/downloads/junos.html

J Series Service Routers

Platform	JTAC Recommended Junos Software by Platform	Release Type	Last updated
J2320	Junos 11.4R7.5	Standard	8 April 2013
J2350	Junos 11.4R7.5	Standard	8 April 2013
J4350	Junos 11.4R7.5	Standard	8 April 2013
J6350	Junos 11.4R7.5	Standard	8 April 2013

Note: For J Series devices with low memory (512MB DRAM & 512MB Compact Flash), either Junos 10.0R4.9 or 10.2R4.10 is recommended. Also, these devices cannot be upgraded to Junos 10.4 and above without the DRAM and Compact Flash upgrade. Please refer to PSN-2011-06-283 - J-Series routers require 1GB RAM and 1GB Flash starting Junos 10.4 for more details.

Please follow this link to go to the software download page: https://www.juniper.net/support/downloads/junos.html

M, T and MX Series Routers

Platform	JTAC Recommended Junos Software by Platform	Release Type	Last updated
M Series	Junos 11.4R7.5	Standard	15 March 2013
T Series	Junos 11.4R7.5	Standard	15 March 2013
MX Series	Junos 11.4R7.5	Standard	15 March 2013
MX Series with Enhanced SCB	Junos 11.4R7.5	Standard	15 March 2013
MX5, MX10, MX40 Series	Junos 11.4R7.5	Standard	15 March 2013

Please follow this link to go to the software download page: https://www.juniper.net/support/downloads/junos.html

QFX Series 

Platform	JTAC Recommended Junos Software by Platform	Release Type	Last updated
QFX3500 / QFX3600	Junos 12.2X50-D41.1	Standard	4 Apr 2013
Qfabric	Junos 12.2X50-D41.1	Standard	4 Apr 2013

NOTE: Please contact JTAC for further details on recommended releases for the QFX-series platform.

Please refer to PSN-2013-03-908 JunOS Service Release 12.2X50-D41.1 for QFX-series for software download.


Please follow this link to go to the software download page: https://www.juniper.net/support/downloads/junos.html

SRX Series Services Gateways

Platform	JTAC Recommended Junos Software by Platform	Release Type	Last updated
SRX100	Junos 11.4R7.5	Standard	8 April 2013
SRX110	Junos 11.4R7.5	Standard	8 April 2013
SRX210 (*1)	Junos 11.4R7.5	Standard	8 April 2013
SRX220	Junos 11.4R7.5	Standard	8 April 2013
SRX240	Junos 11.4R7.5	Standard	8 April 2013
SRX550 (*2)	Junos 12.1X44-D11.5 (*4)	Standard	8 April 2013
SRX650	Junos 11.4R7.5	Standard	8 April 2013
SRX1400 (*3)	Junos 11.4R7.5	Standard	8 April 2013
SRX3400	Junos 11.4R7.5	Standard	8 April 2013
SRX3600	Junos 11.4R7.5	Standard	8 April 2013
SRX5600	Junos 11.4R7.5	Standard	8 April 2013
SRX5800	Junos 11.4R7.5	Standard	8 April 2013

(*1) SRX210 recommendation includes old SRX210-B/H/H-POE platforms and new SRX210-BE/HE-HE-POE platforms.
(*2) PSN-2013-01-822 - Recommended Junos Releases for SRX-series and J-series for IPSec Feature Set
(*3) SRX 1400 deployment as a Chassis Cluster requires version Junos 11.1 and above.
(*4) PSN-2013-03-902 - Junos 12.1X44 upgrade recommendation for SRX-Series

Please follow this link to go to the software download page: https://www.juniper.net/support/downloads/junos.html

SA/UAC Series

Platform	JTAC Recommended Junos Software by Platform	Release Type	Last updated
MAG 6610/6611 platform MAG-CM060	Junos 11.4R4.4	Standard	02 April 2013

Please follow this link to go to the software download page: https://www.juniper.net/support/downloads/junos.html